ColdFusion includes a coldfusion.eventgateway.GatewayHelper Java marker interface, with no methods. Implement this interface to define a class that provides gateway-specific utility methods to the ColdFusion application or listener CFC. For example, an instant messaging event gateway might use a helper class to provide buddy list management methods to the application. The Gateway class must implement a getHelper method that returns the helper class, or null if you do not implement the interface.
For information on GatewayHelper classes, see GatewayHelper class.